KR102459604B1 - Display substrate and liquid crystal display comprising the same - Google Patents

Abstract

A display substrate according to an embodiment of the present invention includes a base substrate having a plurality of pixel regions arranged in a first direction and a pixel electrode arranged in the pixel region, wherein the pixel electrode includes a first sub-pixel electrode and the first sub-pixel electrode includes a first unit electrode, a second unit electrode spaced apart from the first unit electrode, and a first connection part connecting the first unit electrode and the second unit electrode, A space between the first unit electrode and the second unit electrode defines a first slit, and the first slit is not parallel to the first direction.

Description

Display substrate and liquid crystal display including same

The present invention relates to a display substrate and a liquid crystal display including the same, and more particularly, to a liquid crystal display having a curved display substrate.

The display device is a liquid crystal display (LCD), an organic light emitting diode display (OLED display), a plasma display panel (PDP), and an electrophoretic display device depending on the light emitting method. display), etc.

Among them, the liquid crystal display includes two substrates facing each other and a liquid crystal layer interposed between the two substrates. An electric field is applied to the liquid crystal layer interposed between the two substrates of the liquid crystal display, and the intensity of the electric field is adjusted to control the amount of light passing through the substrate, thereby displaying an image on the liquid crystal display.

Recently, a curved liquid crystal display device has been developed, and the curved liquid crystal display device provides a curved display area to provide a user with an image with improved three-dimensional effect, immersion, and realism.

SUMMARY One embodiment of the present invention is to provide a liquid crystal display device with improved display quality and a display substrate applied to the liquid crystal display device.

Another embodiment of the present invention is to provide a display substrate including a pixel electrode having a structure to reduce process defects in a process of forming the pixel electrode.

According to an embodiment of the present invention, there is provided a base substrate comprising: a base substrate having a plurality of pixel areas disposed in a first direction; and a pixel electrode disposed in the pixel area, wherein the pixel electrode includes a first sub-pixel electrode, wherein the first sub-pixel electrode includes: a first unit electrode; a second unit electrode spaced apart from the first unit electrode; and a first connector connecting the first unit electrode and the second unit electrode, wherein a space between the first unit electrode and the second unit electrode defines a first slit, and the first slit is not parallel to the first direction, and the first unit electrode may include: a first vertical stem disposed at one side of the pixel area; and a first horizontal stem connected to the first vertical stem, wherein the second unit electrode includes: a second vertical stem disposed on the other side of the pixel area; and a second horizontal stem portion connected to the second vertical stem portion, wherein one end of the first horizontal stem portion is connected to the first vertical stem portion and the other end is adjacent to the first vertical stem portion of a neighboring pixel electrode. and, one end of the second horizontal stem is connected to the second vertical stem, and the other end is adjacent to the second vertical stem of a neighboring pixel electrode.

The first unit electrode includes a plurality of first branch portions and a plurality of second branch portions disposed to face each other with respect to the first horizontal stem portion, and the second unit electrode is opposite to the second horizontal stem portion based on the second horizontal stem portion. It includes a plurality of third branch portions and a plurality of fourth branch portions disposed.

The first branch portion, the second branch portion, the third branch portion, and the fourth branch portion are sequentially disposed along a second direction intersecting the first direction.

The width of the second domain defined as the arrangement area of the plurality of second branches decreases as the distance from the first vertical stem portion increases, and the width of the third domain defined as the arrangement area of the plurality of third branches is equal to the width of the third domain defined as the arrangement area of the plurality of third branches. It may become smaller as the distance from the second vertical stem portion increases.

The width of the second domain defined as the arrangement area of the plurality of second branches increases as the distance from the first vertical stem portion increases, and the width of the third domain defined as the arrangement area of the plurality of third branches is equal to the width of the third domain. 2 The farther away from the vertical stem, the larger it may be.

At least one of the plurality of second branch portions and at least one of the plurality of third branch portions are connected to each other by the first connecting portion.

The first slit has an angle of 5° to 45° with the first direction.

The pixel electrode further includes a second sub-pixel electrode, the second sub-pixel electrode comprising: a third unit electrode; a fourth unit electrode spaced apart from the third unit electrode; and a second connector connecting the third unit electrode and the fourth unit electrode, wherein a space between the third unit electrode and the fourth unit electrode defines a second slit, and the second slit includes: is not parallel to the first direction, and the third unit electrode may include: a third vertical stem disposed at one side of the pixel area; and a third horizontal stem portion connected to the third vertical stem portion, wherein the fourth unit electrode includes: a fourth vertical stem portion disposed on the other side of the pixel area; and a fourth horizontal stem portion connected to the fourth vertical stem portion, wherein one end of the third horizontal stem portion is connected to the third vertical stem portion and the other end is adjacent to the third vertical stem portion of a neighboring pixel electrode. and one end of the fourth horizontal stem is connected to the fourth vertical stem, and the other end is adjacent to the fourth vertical stem of a neighboring pixel electrode.

The third unit electrode includes a plurality of fifth branch portions and a plurality of sixth branch portions disposed to face each other with respect to the third horizontal stem portion, and the fourth unit electrode is opposite to the fourth horizontal stem portion based on the fourth horizontal stem portion. It includes a plurality of seventh branch portions and a plurality of eighth branch portions disposed.

The fifth branch, the sixth branch, the seventh branch, and the eighth branch are sequentially disposed along a second direction intersecting the first direction.

The width of the sixth domain defined as the arrangement area of the plurality of sixth branches decreases as the distance from the third vertical stem portion increases, and the width of the seventh domain defined as the arrangement area of the plurality of seventh branches is equal to the width of the sixth domain defined as the arrangement area of the plurality of seventh branches. It may become smaller as it moves away from the fourth vertical stem part.

The width of the sixth domain defined as the arrangement area of the plurality of sixth branches increases as the distance from the third vertical stem portion increases, and the width of the seventh domain defined as the arrangement area of the plurality of seventh branches is equal to the width of the sixth domain. 7 The farther away from the vertical stem, the larger it can be.

At least one of the plurality of sixth branch parts and at least one of the plurality of seventh branch parts are connected to each other by the second connection part.

The second slit has an angle of 5° to 45° with the first direction.

The display substrate further includes a shielding electrode disposed between pixel electrodes adjacent to each other in the first direction.

Another embodiment of the present invention provides a display substrate; a counter substrate disposed to face the display substrate; and a liquid crystal layer disposed between the display substrate and the opposite substrate, wherein the display substrate comprises: a base substrate having a plurality of pixel areas arranged in a first direction; and a pixel electrode disposed in the pixel area, wherein the pixel electrode includes a first sub-pixel electrode, wherein the first sub-pixel electrode includes: a first unit electrode; a second unit electrode spaced apart from the first unit electrode; and a first connector connecting the first unit electrode and the second unit electrode, wherein a space between the first unit electrode and the second unit electrode defines a first slit, and the first slit is not parallel to the first direction, and the first unit electrode may include: a first vertical stem disposed at one side of the pixel area; and a first horizontal stem connected to the first vertical stem, wherein the second unit electrode includes: a second vertical stem disposed on the other side of the pixel area; and a second horizontal stem portion connected to the second vertical stem portion, wherein one end of the first horizontal stem portion is connected to the first vertical stem portion and the other end is adjacent to the first vertical stem portion of a neighboring pixel electrode. and one end of the second horizontal stem is connected to the second vertical stem, and the other end is adjacent to the second vertical stem of a neighboring pixel electrode.

The first unit electrode includes a plurality of first branch portions and a plurality of second branch portions disposed to face each other with respect to the first horizontal stem portion, and the second unit electrode is opposite to the second horizontal stem portion based on the second horizontal stem portion. It includes a plurality of third branch portions and a plurality of fourth branch portions disposed.

The width of the second domain defined as the arrangement area of the plurality of second branches decreases as the distance from the first vertical stem portion increases, and the width of the third domain defined as the arrangement area of the plurality of third branches is equal to the width of the third domain defined as the arrangement area of the plurality of third branches. It may become smaller as the distance from the second vertical stem portion increases.

The width of the second domain defined as the arrangement area of the plurality of second branches increases as the distance from the first vertical stem portion increases, and the width of the third domain defined as the arrangement area of the plurality of third branches is equal to the width of the third domain. 2 The farther away from the vertical stem, the larger it may be.

The opposite substrate may further include a common electrode.

According to the present invention, the liquid crystal display device provides excellent image quality, and in particular, it is possible to provide an image of excellent quality in a display area having a curved shape. In addition, when the pixel electrode according to an embodiment of the present invention is applied, defects in the manufacturing process of the display substrate may be reduced.

1A is a perspective view of a liquid crystal display device according to a first embodiment of the present invention.
1B is a side view of a liquid crystal display device according to a first embodiment of the present invention.
FIG. 2 is a plan view of a portion “A” of FIG. 1A .
3 is a plan view of one pixel of the liquid crystal display shown in FIG. 1A .
FIG. 4 is a cross-sectional view taken along line I-I' of FIG. 2 .
FIG. 5 is a cross-sectional view taken along II-II′ of FIG. 2 .
6 is a schematic diagram of domains and liquid crystal alignment directions defined in a pixel area.
FIG. 7 is a plan view of the pixel electrode and the shielding electrode shown in FIG. 2 .
8 is a plan view of a pixel electrode and a shielding electrode of a liquid crystal display according to a second exemplary embodiment of the present invention.
9A to 9H are manufacturing process diagrams of the liquid crystal display shown in FIG. 1 .

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention is capable of various modifications and can be embodied in various forms, only specific embodiments are illustrated in the drawings and the present invention will be described with reference to them. However, the scope of the present invention is not limited to these specific examples. It should be understood that all modifications, equivalents or replacements included in the spirit and scope of the present invention are included in the scope of the present invention.

In the drawings, each component and its shape may be drawn briefly or exaggerated, and components in the actual product may be omitted without being expressed. Accordingly, the drawings should be interpreted as helping the understanding of the invention. Also, components having the same function are denoted by the same reference numerals.

When a layer or component is described as being 'on' another layer or component, it is not only when a layer or component is disposed in direct contact with another layer or component, but also when a third layer is intervened. It is meant to include all cases where they are interposed and arranged.

When a part is said to be connected to another part, it includes not only a case in which it is directly connected, but also a case in which another component is placed in the middle and electrically connected. In addition, when it is said that a part includes a certain component, this means that other components may be further included, rather than excluding other components, unless otherwise stated.

In this specification, terms such as first, second, third, etc. are used to describe various components, but these components are not limited by the terms. The above terms are used for the purpose of distinguishing one component from other components. For example, without departing from the scope of the present invention, a first component may be referred to as a second or third component, and similarly, the second or third component may also be alternately named. For example, the element “A” may be expressed as “first A”, “second A” or “third A”.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe a correlation between an element or components and other elements or components. It should be understood that spatially relative terms include different orientations of the element in use or operation in addition to the orientation shown in the drawings. For example, when an element shown in the figure is turned over, an element described as "below, beneath" another element may be placed "above" another element. Accordingly, the exemplary term “below” may include both directions below and above. The device may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted excessively unless clearly defined in particular.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar elements throughout the specification.

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 7 .

1A is a perspective view of the liquid crystal display 101 according to the first embodiment of the present invention, and FIG. 1B is a side view of the liquid crystal display 101 according to the first embodiment of the present invention.

1A and 1B , the liquid crystal display 101 according to the first embodiment of the present invention has a display area DA in which an image is displayed, and has a curved overall shape. The liquid crystal display 101 may display an image with improved three-dimensional effect, immersion, and presence by using the display area DA having a curved shape.

The liquid crystal display 101 includes a display substrate 100 , a counter substrate 300 , and a liquid crystal layer (LC in FIG. 4 ). The opposite substrate 300 faces the display substrate 100 and is coupled to the display substrate 100 , and the liquid crystal layer LC is interposed between the display substrate 100 and the opposite substrate 300 .

The liquid crystal display 101 may further include other components in addition to the display substrate 100 and the counter substrate 300 . For example, the liquid crystal display 101 may further include a backlight assembly (not shown) for outputting light toward the display substrate 100 .

The liquid crystal display 101 according to the first embodiment of the present invention is curved along the first direction D1 on a plane. In the first embodiment of the present invention, a direction in which the distance between both ends is reduced when in a curved state compared to a flat plane that is not curved is defined as a curved direction. According to the first embodiment of the present invention, since the distance between both ends of the curved display substrate 100 is reduced along the first direction compared to the non-curved flat display substrate, the display substrate 100 moves in the first direction D1 . Expressed as curved along In detail, part or all of the display substrate 100 has a curved shape along the first direction D1 , and the display area DA also has a curved shape curved along the first direction D1 . Also, the opposite substrate 300 may have a curved shape together with the display substrate 100 .

However, the first embodiment of the present invention is not limited thereto, and the liquid crystal display 101 and the display substrate 100 may have a flat planar shape.

FIG. 2 is a plan view of a portion “A” of FIG. 1A , FIG. 3 is a plan view of any one pixel of the liquid crystal display shown in FIG. 1A , and FIG. 4 is a cross-sectional view taken along line II′ of FIG. 2 . , FIG. 5 is a cross-sectional view taken along II-II′ of FIG. 2 .

Although the liquid crystal display 101 includes a plurality of pixels, FIG. 2 shows two pixels among the plurality of pixels, FIG. 3 shows one pixel, and display of the remaining pixels and pixel areas is omitted. Also, the structure of the display substrate 100 is mainly illustrated in FIGS. 2 and 3 , and the structure of the opposite substrate 300 is illustrated in FIGS. 4 and 5 .

2, 3, 4 and 5 , the display substrate 100 includes a base substrate S1, a gate line GL, a first data line DL1, a second data line DL2, and a second It includes a first thin film transistor TR1 , a second thin film transistor TR2 , a pixel electrode PE, and a first alignment layer 110 .

The base substrate S1 may be an insulating substrate having light transmission characteristics and flexible characteristics like a plastic substrate. However, the first embodiment of the present invention is not limited thereto, and the base substrate S1 may be made of a hard substrate such as a glass substrate.

The base substrate S1 has a plurality of pixel areas PA disposed in the first direction D1 , and the pixel electrode PE is disposed in the pixel area PA.

According to the first exemplary embodiment, the pixel area PA includes a first sub-pixel area PA1 and a second sub-pixel area PA2 . In addition, the pixel electrode PE includes a first sub-pixel electrode PE1 disposed in the first sub-pixel area PA1 and a second sub-pixel electrode PE2 disposed in the second sub-pixel area PA2 . .

The gate line GL is disposed on the base substrate S1 . The gate line GL is electrically connected to the first and second thin film transistors TR1 and TR2 to transmit a gate signal to the first and second thin film transistors TR1 and TR2.

The first and second data lines DL1 and DL2 are disposed on the base substrate S1 insulated from the gate line GL, the first data line DL1 transmits a first data signal, and a second The data line DL2 transmits a second data signal. According to the first embodiment of the present invention, the first data line DL1 extends along one side (left side in the drawing) of the first and second sub-pixel electrodes PE1 and PE2, and the second data line DL2 ) extends along the other side (right side in the drawing) of the first and second sub-pixel electrodes PE1 and PE2, and is between the first and second sub-pixels between the first and second data lines DL1 and DL2. Electrodes PE1 and PE2 are positioned. In the first embodiment of the present invention, the first data line DL1 and the second data line DL2 extend along the second direction D2 .

The first thin film transistor TR1 is electrically connected to the gate line GL, the first data line DL1, and the first sub-pixel electrode PE1. Accordingly, when the first thin film transistor TR1 is turned on by the gate signal, the first data signal may be applied to the first sub-pixel electrode PE1 .

The first thin film transistor TR1 includes a first gate electrode GE1 , a first active pattern AP1 , a first source electrode SE1 , and a first drain electrode DE1 . The first gate electrode GE1 is branched from the gate line GL, and the first active pattern AP1 is disposed on the first gate electrode GE1 with the first insulating layer L1 interposed therebetween. The first source electrode SE1 is branched from the first data line DL1 to contact the first active pattern AP1 , and the first drain electrode DE1 is spaced apart from the first source electrode SE1 for the first active It is in contact with the pattern AP1.

Here, the first insulating layer L1 is also referred to as a gate insulating layer.

The second insulating layer L2 covers the first thin film transistor TR1 , and the third insulating layer L3 is disposed on the second insulating layer L2 .

The first sub-pixel electrode PE1 is disposed on the third insulating layer L3 , and the first drain electrode PE1 passes through the first contact hole CNT1 formed through the second and third insulating layers L2 and L3 . DE1).

The second thin film transistor TR2 is electrically connected to the gate line GL, the second data line DL2 and the second sub-pixel electrode PE2 . Accordingly, when the second thin film transistor TR2 is turned on by the gate signal, the second data signal may be applied to the second sub-pixel electrode PE2 .

The second thin film transistor TR2 includes a second gate electrode GE2 , a second active pattern AP2 , a second source electrode SE2 , and a second drain electrode DE2 . The second gate electrode GE2 is branched from the gate line GL, and the second active pattern AP2 is disposed on the second gate electrode GE2 with the first insulating layer L1 interposed therebetween. The second source electrode SE2 is branched from the second data line DL2 to contact the second active pattern AP2 , and the second drain electrode DE2 is spaced apart from the second source electrode SE2 for the second active It is in contact with the pattern AP2.

The second sub-pixel electrode PE2 is disposed on the third insulating layer L3, and the second drain electrode (CNT2) is formed through the second and third insulating layers L2 and L3 through the second contact hole CNT2. DE2).

According to the first embodiment of the present invention, each of the first and second active patterns AP1 and AP2 may include a semiconductor material such as amorphous silicon or crystalline silicon. However, the first embodiment of the present invention is not limited thereto, and each of the first and second active patterns AP1 and AP2 is IGZO, ZnO, SnO ₂ , In ₂ O ₃ , Zn ₂ SnO ₄ , Ge ₂ O It may include an oxide semiconductor such as ₃ or HfO ₂ , or a compound semiconductor such as GaAs, GaP, or InP.

As described above, the first and second thin film transistors TR1 and TR2 are turned on by the gate signal. In this case, the first data signal is applied to the first sub-pixel electrode PE1 through the first thin film transistor TR1 , and the second data signal is applied to the second sub-pixel electrode PE2 through the second thin film transistor TR2 . A signal is applied. Accordingly, the first sub-pixel electrode PE1 and the second sub-pixel electrode PE2 are driven with different data signals to generate different grayscales in the first sub-pixel area PA1 and the second sub-pixel area PA2 . can be displayed. On the other hand, the first sub-pixel electrode PE1 and the second sub-pixel electrode PE2 may be driven with the same data signal.

The first alignment layer 110 is disposed on the pixel electrode PE and contacts the liquid crystal layer LC.

For example, when an electric field is not formed between the display substrate 100 and the counter substrate 300 , the first alignment layer 110 aligns the liquid crystal molecules 201 included in the liquid crystal layer LC to the first alignment layer ( 110) can be oriented obliquely. In this case, the liquid crystal molecules 101 obliquely aligned by the first alignment layer 110 may be further inclined by application of an electric field to be aligned in a horizontal direction with respect to the display substrate 100 . The operation mode of the liquid crystal molecules 201 is also referred to as a super vertical alignment (SVA) mode, and when the SVA mode is applied, the response time of the liquid crystal display 101 to display an image is excellent.

The opposing substrate 300 includes an opposing base substrate S2 , a color filter CF, a light blocking layer BM, a common electrode CE, and a second alignment layer 310 . The opposing base substrate S2 may be an insulating substrate having light transmission characteristics and flexible characteristics. However, the first embodiment of the present invention is not limited thereto, and the opposing base substrate S2 may be made of a hard substrate such as a glass substrate.

The common electrode CE is disposed on the opposite base substrate S2 to generate an electric field acting on the liquid crystal layer LC together with the pixel electrode PE. The light blocking layer BM may be disposed on the opposite base substrate S2 to correspond to positions of the gate line GL and the first and second thin film transistors TR1 and TR2 . The light blocking layer BM blocks light. The color filter CF is disposed on the opposite base substrate S2 to filter the color of the light transmitted through the liquid crystal layer LC.

Although the structure in which the light blocking layer BM and the color filter CF are disposed on the opposite base substrate S2 is illustrated in FIGS. 4 and 5 , the first embodiment of the present invention is not limited thereto. For example, at least one of the light blocking layer BM and the color filter CF may be disposed on the base substrate S1 .

According to the first embodiment of the present invention, the first sub-pixel electrode PE1 includes a first horizontal stem part HS1 , a second horizontal stem part HS2 , a first vertical stem part VS1 , and a second vertical row. It includes a base VS2 , a plurality of first branch portions B1 , a plurality of second branch portions B2 , a plurality of third branch portions B3 , and a plurality of fourth branch portions B4 .

The first vertical stem portion VS1 is connected to the first horizontal stem portion HS1 , a portion of the plurality of first branch portions B1 , and a portion of the plurality of second branch portions B2 , and the second vertical stem portion VS2 is connected to the second horizontal stem portion HS2 , a portion of the plurality of third branch portions B3 , and a portion of the plurality of fourth branch portions B4 . According to the first embodiment of the present invention, each of the first and second vertical stem portions VS1 and VS2 extends in the second direction D2, and the second direction D2 is the liquid crystal display 101 . It intersects with the bending first direction D1. For example, the second direction D2 may be perpendicular to the first direction D1 on a plane.

The first horizontal stem portion HS1 is connected to the first vertical stem portion VS1 , a portion of the plurality of first branch portions B1 , and a portion of the plurality of second branch portions B2 . According to the first exemplary embodiment, the first horizontal stem part HS1 is branched from the central portion of the first vertical stem part VS1 and extends in the first direction D1 . The plurality of first branch portions B1 may extend in a direction symmetrical to the plurality of second branch portions B2 based on the first horizontal stem portion HS1 .

Referring to FIG. 6 , the first horizontal stem part HS1 may be positioned between the first domain DM1 and the second domain DM2 .

The second horizontal stem portion HS2 is connected to the second vertical stem portion VS2 , the plurality of third branch portions B3 , and the plurality of fourth branch portions B4 . According to the first embodiment of the present invention, the second horizontal stem part HS2 may branch from a central portion of the second vertical stem part VS2 and extend in a direction opposite to the first direction D1 . The plurality of third branch portions B3 may extend in a direction symmetrical to the plurality of fourth branch portions B4 based on the second horizontal stem portion HS2 .

Referring to FIG. 6 , the second horizontal stem part HS2 may be positioned between the third domain DM3 and the fourth domain DM4 .

Some of the plurality of first branch portions B1 are branched from the first horizontal stem portion HS1 , and other portions of the plurality of first branch portions B1 are branched from the first vertical stem portion VS1 . In addition, each of the plurality of first branch portions B1 is parallel to the third direction D3 between the first direction D1 and the second direction D2 on a plane, and each of the plurality of first branch portions B1 are spaced apart from each other.

Some of the plurality of second branch portions B2 are branched from the first horizontal stem portion HS1 , and other portions of the plurality of second branch portions B2 are branched from the first vertical stem portion VS1 . Each of the plurality of second branch portions B2 is parallel to the fourth direction D4 between the first direction D1 and the second direction D2 on a plane, and each of the plurality of second branch portions B2 is connected to each other. spaced apart and arranged.

According to the first embodiment of the present invention, the fourth direction D4 may intersect the third direction D3 in a plan view. For example, the third direction D3 and the fourth direction D4 may be orthogonal to each other on a plane. In addition, each of the third direction D3 and the fourth direction D4 may have an angle of 45 degrees to the first direction D1 or the second direction D2 on a plane.

According to the first embodiment of the present invention, the first vertical stem portion VS1 , the first horizontal stem portion HS1 , the plurality of first branch portions B1 , and the plurality of second branch portions B2 include the first It constitutes the unit electrode PU1.

Some of the plurality of third branch portions B3 are branched from the second horizontal stem portion HS2 , and other portions of the plurality of third branch portions B3 are branched from the second vertical stem portion VS2 . In addition, each of the plurality of third branch portions B3 is parallel to the fifth direction D5 between the first direction D1 and the second direction D2 on a plane, and each of the plurality of third branch portions B3 are spaced apart from each other.

Some of the plurality of fourth branch portions B4 are branched from the second horizontal stem portion HS2 , and other portions of the plurality of fourth branch portions B4 are branched from the second vertical stem portion VS2 . In addition, each of the plurality of fourth branch portions B4 is parallel to the sixth direction D6 between the first direction D1 and the second direction D2 on a plane, and each of the plurality of fourth branch portions B4 are spaced apart from each other.

According to the first embodiment of the present invention, the sixth direction D6 may intersect the fifth direction D5 in a plan view. For example, the fifth direction D5 and the sixth direction D6 may be orthogonal to each other on a plane. Also, the fifth direction D5 and the sixth direction D6 may have an angle of 45 degrees to the first direction D1 or the second direction D2 on a planar view, respectively.

According to the first embodiment of the present invention, the second vertical stem portion VS2 , the second horizontal stem portion HS2 , the plurality of third branch portions B3 , and the plurality of fourth branch portions B4 include the second A unit electrode PU2 is constituted.

The first sub-pixel electrode PE1 further includes a first connection part LP1 . The first connection part LP1 is disposed between the second domain DM2 and the third domain DM3 to connect the second branch part B2 and the third branch part B3. According to the first embodiment of the present invention, the first connection part LP1 may be located in the center of the first slit SA1 between the second domain DM2 and the third domain DM3. Specifically, at least one of the plurality of second branch parts B2 and at least one of the plurality of third branch parts B3 are connected to each other by the first connection part LP1 .

Specifically, the first sub-pixel electrode PE1 includes a first unit electrode PU1 , a second unit electrode PU2 spaced apart from the first unit electrode PU1 , and a first unit electrode PU1 and a second unit electrode PU1 . and a first connection part LP1 connecting the unit electrode PU2. A space between the first unit electrode PU1 and the second unit electrode PU2 defines a first slit SA1 , and the first slit SA1 extends in a direction not parallel to the first direction D1 . do. That is, the first slit SA1 becomes a first boundary portion between the first unit electrode PU1 and the second unit electrode PU2 .

According to the first embodiment of the present invention, the size of the second sub-pixel electrode PE2 may be the same as or different from the size of the first sub-pixel electrode PE1 . Also, the shape of the second sub-pixel electrode PE2 may be similar to that of the first sub-pixel electrode PE1 .

The second sub-pixel electrode PE2 includes a third horizontal stem portion HS3 , a fourth horizontal stem portion HS4 , a third vertical stem portion VS3 , a fourth vertical stem portion VS4 , and a plurality of fifth branches. It includes a portion B5, a plurality of sixth branch portions B6, a plurality of seventh branch portions B7, and a plurality of eighth branch portions B8.

The third vertical stem portion VS3 extends in the second direction D2 and is connected to the third horizontal stem portion HS3 , the plurality of fifth branch portions B5 , and the plurality of sixth branch portions B6 . The fourth vertical stem portion VS4 extends in the second direction D2 and is connected to the fourth horizontal stem portion HS4 , the plurality of seventh branch portions B7 , and the plurality of eighth branch portions B8 .

The third horizontal stem part HS3 is branched from the third vertical stem part VS3 and extends in the first direction D1 , and the fourth horizontal stem part HS4 is branched from the fourth vertical stem part VS4 . It extends in a direction opposite to the first direction D1. According to the first embodiment of the present invention, the third horizontal stem part HS3 may be branched from a central portion of the third vertical stem part VS3 , and the fourth horizontal stem part HS4 may be a fourth vertical stem part. It can branch from the central part of (VS4).

Some of the plurality of fifth branch portions B5 are branched from the third horizontal stem portion HS3 , and other portions of the plurality of fifth branch portions B5 are branched from the third vertical stem portion VS3 . Each of the plurality of fifth branch portions B5 is parallel to the third direction D3 on a plane, and each of the plurality of fifth branch portions B5 is arranged to be spaced apart from each other.

Some of the plurality of sixth branch portions B6 are branched from the third horizontal stem portion HS3 , and other portions of the plurality of sixth branch portions B6 are branched from the third vertical stem portion VS3 . Each of the plurality of sixth branch portions B6 is parallel to the fourth direction D4 on a plane, and each of the plurality of sixth branch portions B6 is arranged to be spaced apart from each other.

Some of the plurality of seventh branch portions B7 are branched from the fourth horizontal stem portion HS4 , and other portions of the plurality of seventh branch portions B7 are branched from the fourth vertical stem portion VS4 . Each of the plurality of seventh branch portions B7 is parallel to the fifth direction D5 on a plane, and each of the plurality of seventh branch portions B7 is arranged to be spaced apart from each other.

Some of the plurality of eighth branch portions B8 are branched from the fourth horizontal stem portion HS4 , and other portions of the plurality of eighth branch portions B8 are branched from the fourth vertical stem portion VS4 . Each of the plurality of eighth branch portions B8 is parallel to the sixth direction D6 on a plane, and each of the plurality of eighth branch portions B8 is arranged to be spaced apart from each other.

The second sub-pixel electrode PE2 further includes a second connection part LP2 . The second connection part LP2 is disposed between the third domain DM2 and the fourth domain DM3 to connect the sixth branch part B6 and the seventh branch part B7. According to the first embodiment of the present invention, the second connection part LP2 may be located in the center of the second slit SA2 between the sixth domain DM6 and the seventh domain DM7. Specifically, at least one of the plurality of sixth branch parts B6 and at least one of the plurality of seventh branch parts B7 are connected to each other by the second connection part LP2 .

According to the first embodiment of the present invention, the third vertical stem portion VS3, the third horizontal stem portion HS3, the plurality of fifth branch portions B5, and the plurality of sixth branch portions B6 include the third A unit electrode PU3 is constituted. In addition, the fourth vertical stem portion VS4 , the fourth horizontal stem portion HS4 , the plurality of seventh branch portions B7 , and the plurality of eighth branch portions B8 constitute the fourth unit electrode PU2 . .

Specifically, the second sub-pixel electrode PE2 includes the third unit electrode PU3 , the fourth unit electrode PU4 spaced apart from the third unit electrode PU3 , and the third unit electrode PU3 and the fourth unit electrode PU3 . and a second connection part LP2 connecting the unit electrode PU4. A space between the third unit electrode PU3 and the fourth unit electrode PU4 defines a second slit SA2 , and the second slit SA2 extends in a direction not parallel to the first direction D1 . do. That is, the second slit SA2 becomes a second boundary portion between the third unit electrode PU3 and the fourth unit electrode PU4 .

6 is a schematic diagram of domains and liquid crystal alignment directions defined in a pixel area

When the first to eighth branch portions B1, B2, B3, B4, B5, B6, B7, and B8 have the structure illustrated in FIG. 3 , first to fourth domains are formed in the first sub-pixel area PA1 . (DM1, DM2, DM3, and DM4 of FIG. 6 ) may be defined, and fifth to eighth domains (DM5, DM6, DM7, and DM8 of FIG. 6 ) may be defined in the second sub-pixel area PA2 .

Specifically, the first domain DM1 is defined as an arrangement area of the plurality of first branch parts B1 , and the second domain DM2 is defined as an arrangement area of the plurality of second branch parts B2 , The third domain DM3 is defined as an arrangement area of the plurality of third branch portions B3 , the fourth domain DM4 is defined as an arrangement area of the plurality of fourth branch portions B4 , and the fifth domain DM5 is defined as an arrangement area of the plurality of fourth branch portions B4 . ) is defined as an arrangement area of the plurality of fifth branch portions B5 , the sixth domain DM6 is defined as an arrangement area of the plurality of sixth branch portions B6 , and the seventh domain DM7 is defined as a plurality of arrangement areas It is defined as an arrangement area of the seventh branch part B7 , and the eighth domain DM8 is defined as an arrangement area of the plurality of eighth branch parts B8 .

The first domain DM1 , the second domain DM2 , the third domain DM3 , and the fourth domain DM4 are sequentially disposed along the second direction D2 . Similarly, the fifth domain DM5 , the sixth domain DM6 , the seventh domain DM7 , and the eighth domain DM8 are sequentially disposed along the second direction D2 .

Also, the first domain DM1 may be defined as a region in which the liquid crystal molecules 201 are aligned by the plurality of first branch portions B1 , and in this case, the liquid crystal alignment direction in the first domain DM1 . (DR1) is defined as the third direction (D3). The second domain DM2 may be defined as a region in which the liquid crystal molecules 201 are aligned by the plurality of second branch portions B2 , and in this case, the liquid crystal alignment direction DR2 in the second domain DM2 . ) is defined as the fourth direction D4.

Similarly, the liquid crystal alignment direction DR3 in the third domain DM3 is defined as the fifth direction D5 , and the fourth liquid crystal alignment direction DR4 in the fourth domain DM4 is defined as the sixth direction D6 . ) is defined as

As such, the first to fourth domains DM1 to DM4 are sequentially arranged in the second direction D2 in the first sub-pixel area PA1 , and the first to fourth domains DM1 , DM2, In DM3 and DM4), the liquid crystal alignment directions are all different. Accordingly, the viewing range of the first sub-pixel area PA1 may be expanded.

Similarly, fifth to eighth domains DM5 to DM8 are sequentially arranged in the second sub-pixel area PA2 along the second direction D2, and the fifth to eighth domains DM5, DM6, In DM7 and DM8), the liquid crystal alignment directions are all different. Accordingly, the viewing range of the second sub-pixel area PA2 may be expanded.

When the liquid crystal display 101 is bent along the first direction D1 , misalignment may occur between the display substrate 100 and the opposite substrate 300 . For example, due to misalignment, the alignment may be shifted between the display substrate 100 and the opposite substrate 300 by the first length LA1 in the first direction D1 .

However, in the liquid crystal display 101 according to the first embodiment of the present invention, the first to eighth domains DM1 to DM8 are arranged in the second direction D2 perpendicular to the first direction D1. Therefore, the alignment defect of the liquid crystal molecules 201 does not occur.

In more detail, an area in which the liquid crystal molecules 201 are aligned by the first alignment layer 110 disposed on the display substrate 100 is defined as a lower alignment area AR1 , and the second alignment area disposed on the opposite substrate 300 is defined as a lower alignment area AR1 . A region in which liquid crystal molecules are aligned by the second alignment layer 310 is defined as an upper alignment region AR2 . The alignment directions of liquid crystals in the upper doubling region AR2 and the lower alignment region AR1 are the same. If the opposing substrate 300 is moved by the first length LA1 in the first direction D1 so that the position of the lower alignment area AR1 does not partially coincide with the position AR2 of the upper alignment area, the first On the domain DM1 , the lower alignment area AR1 and the upper alignment area AR2 having the same liquid crystal alignment direction still overlap. That is, on the first domain DM1 , the lower alignment region AR1 does not overlap with another upper alignment region oriented in a direction different from the first liquid crystal alignment direction DR1 . Therefore, the alignment error of the liquid crystal molecules 201 does not occur in response to the alignment error occurring in the first direction D1, and as a result, the texture due to the alignment defect and the local light transmittance decrease in each domain are reduced. does not occur

2 and 5 , the shielding electrode SCE is disposed between the first pixel PX1 and the second pixel PX2 adjacent to each other. As shown in FIG. 2 , the shielding electrode SCE extends in the second direction D2 along the first and second data lines DL1 and DL2 .

The shielding electrode SCE is disposed on the third insulating layer L3, like the first and second sub-pixel electrodes PE1 and PE2. That is, the shielding electrode SCE is disposed on the same layer as the first and second sub-pixel electrodes PE1 and PE2 . The shielding electrode SCE is spaced apart from the first and second sub-pixel electrodes PE1 and PE2 to be electrically insulated from the first and second sub-pixel electrodes PE1 and PE2, respectively.

The shielding electrode SCE may be made of the same material and the same process as the first and second sub-pixel electrodes PE1 and PE2 . The shielding electrode SCE, the first sub-pixel electrode PE1 , and the second sub-pixel electrode PE2 may be made of a transparent conductive oxide (TCO). For example, the shielding electrode SCE, the first sub-pixel electrode PE1 , and the second sub-pixel electrode PE2 may include indium titanium oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), and IGZO. It may include at least one selected from the group consisting of (indium gallium zinc oxide).

According to the first embodiment of the present invention, the shielding electrode SCE has a width sufficient to cover the first and second data lines DL1 and DL2. A voltage having the same potential as the common voltage applied to the common electrode CE is applied to the shielding electrode SCE. Accordingly, an electric field is not formed between the shielding electrode SCE and the common electrode CE. In particular, when the liquid crystal layer LC is made of negative liquid crystal molecules 201 , the liquid crystal molecules 201 are vertically arranged with respect to the surface of the shielding electrode SCE in an electric field-free state.

As such, when the liquid crystal molecules 201 are vertically aligned, light provided from the backlight assembly may be blocked by the vertically aligned liquid crystal molecules 201 . That is, the shielding electrode SCE serves to block light provided from the backlight assembly. Accordingly, the light blocking layer BM may not be disposed in a region corresponding to the shielding electrode SCE of the opposing base substrate S2 . However, the first embodiment of the present invention is not limited thereto, and the light blocking layer BM may be disposed in a region corresponding to the shielding electrode SCE of the opposing base substrate S2 .

When the display substrate 100 includes the shielding electrode SCE, even if misalignment occurs between the display substrate 100 and the opposite substrate 300 , the light blocking area by the shielding electrode SCE is the pixel area PA. There is no inward movement. Accordingly, it is possible to prevent the dark vertical stripes from being generated in the liquid crystal display 101 .

FIG. 7 is a plan view of the pixel electrode and the shielding electrode shown in FIG. 2 .

Referring to FIG. 7 , the first slit SA1, which is a slit-shaped separation space that separates the first unit electrode PU1 and the second unit electrode PU2, is formed at a predetermined angle θ ₁ with the first direction D1. ) has For example, the first slit SA1 may have an angle θ ₁ of 5° to 45° with the first direction D1 . More specifically, the first slit SA1 may have an angle θ ₁ of 5° to 30° with the first direction D1 .

In the first embodiment of the present invention, the first direction D1 is referred to as the longitudinal direction of the domain, and the second direction D2 is referred to as the width direction of the domain. Accordingly, the width of the domain may be defined as a range in which the domain is located along the second direction.

The width of the second domain DM2 defined as the arrangement area of the plurality of second branch portions B2 decreases as the distance from the first vertical stem portion VS1 increases. That is, the lengths of the plurality of second branch portions B2 are gradually shorter as the distance from the first vertical stem portion VS1 is increased.

In addition, the width of the third domain DM3 defined as the arrangement region of the plurality of third branch portions B3 also decreases as the distance from the second vertical stem portion VS2 increases. That is, the lengths of the plurality of third branch portions B3 become shorter as the distance from the second vertical stem portion VS2 increases.

According to the first embodiment of the present invention, the first vertical stem part VS1 is disposed on one side (left side in the drawing) of the pixel area PA, and the second vertical stem part VS2 is located on the pixel area PA. It is disposed on the other side (right side in the drawing). That is, the first vertical stem portion VS1 and the second vertical stem portion VS2 are disposed opposite to each other in the pixel area PA. Accordingly, the width of the second domain DM2 decreases as it moves away from the first vertical stem part VS1 , and the width of the third domain DM3 also decreases as it moves away from the second vertical stem part VS2 , A region in which the second domain DM2 and the third domain DM3 are combined may be rectangular.

According to the first embodiment of the present invention, the first vertical stem portions VS1 of the first pixel PX1 and the second pixel PX2 that are adjacent to each other are disposed not to be adjacent to each other. In addition, the second vertical stem portions VS2 of the first pixel PX1 and the second pixel PX2 that are adjacent to each other are also disposed not to be adjacent to each other.

Specifically, one end H _1a of the first horizontal stem portion HS1 is connected to the first vertical stem portion VS1 , and the other end H _1b is adjacent to the first vertical stem portion VS1 of the neighboring pixel electrode. do. Also, one end H _2a of the second horizontal stem portion HS2 is connected to the second vertical stem portion VS2 , and the other end H _2b is adjacent to the second vertical stem portion VS2 of the neighboring pixel electrode. . Accordingly, the first vertical stem portion VS1 of the first pixel PX1 is adjacent to the end of the branch portions of the first unit electrode PU1 disposed in the adjacent second pixel PX2 (E1 of FIG. 7 ). Reference). Similarly, the second vertical stem portion VS2 of the first pixel PX1 is adjacent to the end of the branch portions of the second unit electrode PU2 disposed in the adjacent second pixel PX2 .

For reference, when the first vertical stem portions VS1 of the first pixel PX1 and the second pixel PX2 adjacent to each other are disposed adjacent to each other, the first vertical stem portion VS1 is disposed adjacent to each other. The vertical stem portion VS1 , the first horizontal stem portion HS1 , the plurality of first branch portions B1 , and the plurality of second branch portions B2 are densely arranged. As such, when various electrode components are concentrated in a narrow area, there is a high possibility that defects may occur in the photoresist (PR) pattern in the process of forming the pixel electrode (PE) using the photoresist (PR). For example, in the process of forming the pixel electrode PE using the photoresist PR, reflow of the photoresist PR may occur, thereby causing a defect in which electrode materials remain in the pixel electrode PE. .

According to the first embodiment of the present invention, the first vertical stem portions VS1 of the first and second pixels PX1 and PX2 that are adjacent to each other are disposed not to be adjacent to each other (portion “E1” in FIG. 7 ). , a photoresist (PR) pattern formation defect and a pixel electrode (PE) defect are reduced or prevented in the process of forming the pixel electrode PE.

Similarly, the third vertical stem portions VS3 of the first and second pixels PX1 and PX2 that are adjacent to each other are disposed not to be adjacent to each other, and the fourth vertical stem portions VS4 are also disposed not to be adjacent to each other. .

Specifically, one end H _3a of the third horizontal stem portion HS3 is connected to the third vertical stem portion VS3 , and the other end H _3b is adjacent to the third vertical stem portion VS3 of the neighboring pixel electrode. do. Also, one end H _4a of the fourth horizontal stem portion HS4 is connected to the fourth vertical stem portion VS4 , and the other end H _4b is adjacent to the fourth vertical stem portion VS4 of a neighboring pixel electrode. . Accordingly, the third vertical stem portion VS3 of the first pixel PX1 is adjacent to the ends of the branch portions of the third unit electrode PU3 disposed in the adjacent second pixel PX2 . Similarly, the fourth vertical stem portion VS4 of the first pixel PX1 is adjacent to ends of the branch portions of the fourth unit electrode PU4 disposed in the adjacent second pixel PX2 .

Also, the third vertical stem portion VS3 and the fourth vertical stem portion VS4 are disposed opposite to each other in the pixel area. That is, the third vertical stem part VS3 is disposed on one side (left in the drawing) of the pixel area PA, and the fourth vertical stem part VS2 is disposed on the other side (right in the drawing) of the pixel area PA. do.

The second slit SA2 , which is a slit-shaped space that separates the third unit electrode PU3 and the fourth unit electrode PU4 , has a predetermined angle θ ₂ with the first direction D1 . For example, the second slit SA2 may have an angle θ ₂ of 5° to 45° with the first direction D1 . More specifically, the second slit SA2 may have an angle θ ₂ with the first direction D1 of 5° to 30°.

Also, the width of the sixth domain DM6 decreases as it moves away from the third vertical stem part VS3 , and the width of the seventh domain DM7 decreases as it moves away from the fourth vertical stem part VS4 . That is, the lengths of the plurality of sixth branch portions B6 are gradually shortened as the distance from the third vertical stem portion VS3 is increased, and the plurality of seventh branch portions B7 are farther away from the fourth vertical stem portion VS4 . The longer it gets, the shorter the length.

Hereinafter, a second embodiment of the present invention will be described with reference to FIG. 8 . In order to avoid duplication, descriptions of the already described components are omitted.

8 is a plan view of the liquid crystal display 102 according to the second exemplary embodiment of the present invention, and is a plan view of a first sub-pixel electrode PE1 , a second sub-pixel electrode PE2 , and a shielding electrode SCE.

According to the second embodiment of the present invention, the width of the second domain DM2 of the first pixel PX1 increases as the distance from the first vertical stem portion increases, and the width of the third domain DM3 also increases with the second vertical stem portion. The further away from it, the larger it is. On the other hand, the width of the second domain DM2 of the second pixel PX2 adjacent to the first pixel PX1 decreases as it moves away from the first vertical stem portion, and the width of the third domain DM3 also decreases in the second vertical direction. The farther away from the stem, the smaller it becomes.

Also, the width of the sixth domain DM6 of the first pixel PX1 increases as it moves away from the third vertical stem, and the width of the seventh domain DM7 increases as it moves away from the fourth vertical stem. On the other hand, the width of the sixth domain DM6 of the second pixel PX2 adjacent to the first pixel PX1 decreases as the distance from the third vertical stem portion increases, and the width of the seventh domain DM7 decreases as the width of the fourth domain DM7 increases. The further away from the vertical stem, the smaller the width.

The first vertical stem portions, the second vertical stem portions, the third vertical stem portions, and the fourth vertical stem portions of the first pixel PX1 and the first pixel PX2 that are adjacent to each other are disposed not to be adjacent to each other, respectively. That is, the vertical stem portions of the first pixel PX1 are adjacent to the ends of the branch portions disposed on each unit electrode of the adjacent second pixel PX2 .

Specifically, one end H _1a of the first horizontal stem portion is connected to the first vertical stem portion, and the other end H _1b is adjacent to the first vertical stem portion of the neighboring pixel electrode. One end H _2a of the second horizontal stem portion is connected to the second vertical stem portion, and the other end H _2b is adjacent to the second vertical stem portion of the neighboring pixel electrode. One end H _3a of the third horizontal stem portion is connected to the third vertical stem portion, and the other end H _3b is adjacent to the third vertical stem portion of the neighboring pixel electrode. One end H _4a of the fourth horizontal stem is connected to the fourth vertical stem, and the other end H _4b is adjacent to the fourth vertical stem of the neighboring pixel electrode.

Hereinafter, a method of manufacturing the liquid crystal display will be described with reference to FIGS. 9A to 9H . For convenience of description, a method of manufacturing the liquid crystal display 101 according to the first embodiment of the present invention will be described with reference to the cross-sectional views taken along lines I-I' and II-II' of FIG. 2 .

Referring to FIG. 9A , a first gate electrode GE1 is formed on a base substrate S1 made of transparent glass or plastic. Although not shown in FIG. 9A , at this time, the gate line GL and the second gate electrode GE2 are also formed.

Since the gate line GL and the first and second gate electrodes GE1 and GE2 have already been described, detailed descriptions thereof will be omitted to avoid overlapping.

Referring to FIG. 9B , a first insulating layer L1 made of silicon nitride (SiNx) or silicon oxide (SiOx) is disposed on the first gate electrode GE1 and the exposed base substrate S1 . The first insulating layer L1 is a gate insulating layer.

The first insulating layer L1 may have a multilayer structure including two or more insulating layers having different physical or chemical properties.

Referring to FIG. 9C , the first active pattern AP1 is formed on the first insulating layer L1 , and the first source electrode SE1 and the first drain electrode DE1 are formed thereon, so that the first thin film transistor (TR1) is made. At this time, the first data lines DL1 and the second data lines DL2 are also formed.

Specifically, a semiconductor material for forming the first active pattern AP1 is applied to the entire surface of the first insulating layer L1, a conductive material is applied thereon, and a photoresist is disposed thereon, and then subjected to selective exposure, development and etching. Thus, the first thin film transistor TR1 may be formed. As the semiconductor material, a silicon-based semiconductor material such as amorphous silicon or polycrystalline silicon may be used, and an oxide semiconductor material or a compound semiconductor material may be used. The conductive material may include at least one of molybdenum (Mo), chromium (Cr), titanium (Ti), tantalum (Ta), aluminum (Al), silver (Ag), and copper (Cu).

Referring to FIG. 9D , a second insulating layer L2 and a third insulating layer L3 are sequentially disposed on the entire surface of the substrate including the first thin film transistor TR1, and the second and third insulating layers L2 and L3 ) is removed to form a first contact hole CNT1 exposing a portion of the first drain electrode DE1 .

Referring to FIG. 9E , a material for forming a pixel electrode 150 is disposed on the third insulating layer L3 and the first contact hole CNT1 . A transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), or indium gallium zinc oxide (IGZO) is used as the material 150 for forming the pixel electrode .

Referring to FIG. 9F , a photoresist 170 is coated on the material 150 for forming a pixel electrode, and a pattern mask 401 is disposed on the photoresist 170 to be spaced apart from the photoresist 170 . Next, light is irradiated through the pattern mask 401 to selectively expose the photoresist 170 .

A conventional photoresist may be used as the photoresist 170 , and a positive type photoresist whose etchability is increased by light irradiation may be used.

The pattern mask 401 includes a transparent substrate 410 and a light-transmitting pattern part 420 . The light transmitting pattern unit 420 includes a light transmitting unit 421 and a light blocking unit 422 .

Referring to FIG. 9G , the selectively exposed photoresist 170 is developed to form a photoresist pattern 171 , and the first sub-pixel electrode PE1 and the shielding electrode are etched using the photoresist pattern 171 . (SCE) is created at the same time. At this time, other branch portions including the plurality of fourth branch portions B4 are also formed.

Referring to FIG. 9H , the photoresist pattern 171 is removed to complete the first sub-pixel electrode PE1 and the shielding electrode SCE.

Although not shown in the drawing, the display substrate 100 is formed by disposing the first alignment layer 110 on the first sub-pixel electrode PE1 and the shielding electrode SCE.

Next, the counter substrate 300 is disposed on the display substrate 100 , and the liquid crystal layer LC is interposed between the display substrate 100 and the counter substrate 300 to form the liquid crystal display 101 . .

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

100: display substrate 300: opposing substrate
PE1: first sub-pixel electrode PE2: second sub-pixel electrode
VS1: first vertical stem portion HS1: first horizontal stem portion
B1: first branch part LP1: first domain connection part
PA1: first sub-pixel area PA2: second sub-pixel area
DM1: first domain SCE: shielding electrode

Claims (20)

a base substrate having a plurality of pixel areas disposed in a first direction;
a gate line on the base substrate;
a data line disposed on the base substrate and crossing the gate line;
a switching element connected to the gate line and the data line; and
a pixel electrode disposed in the pixel area and connected to the switching element;
The pixel electrode includes a first sub-pixel electrode,
The first sub-pixel electrode,
a first unit electrode;
a second unit electrode spaced apart from the first unit electrode; and
a first connector connecting the first unit electrode and the second unit electrode;
a space between the first unit electrode and the second unit electrode defines a first slit, wherein the first slit is not parallel to the first direction;
The first unit electrode may include a first vertical stem portion disposed on one side of the pixel area; and a first horizontal stem connected to the first vertical stem.
The second unit electrode may include a second vertical stem portion disposed on the other side of the pixel area; and a second horizontal stem connected to the second vertical stem.
One end of the first horizontal stem is connected to the first vertical stem, and the other end is adjacent to the first vertical stem of a neighboring pixel electrode;
One end of the second horizontal stem is connected to the second vertical stem, and the other end is adjacent to the second vertical stem of a neighboring pixel electrode,
The first vertical stem portion is parallel to the data line,
The first horizontal stem portion is parallel to the gate line,
the first slit is not parallel to the gate line and the data line;
The first slit is not perpendicular to the gate line and the data line. According to claim 1,
The first unit electrode includes a plurality of first branch portions and a plurality of second branch portions disposed to face each other with respect to the first horizontal stem portion,
The second unit electrode includes a plurality of third branch portions and a plurality of fourth branch portions disposed to face each other with respect to the second horizontal stem portion. The display substrate of claim 2 , wherein the first branch, the second branch, the third branch, and the fourth branch are sequentially disposed along a second direction crossing the first direction. 3. The method of claim 2,
The width of the second domain defined as the arrangement area of the plurality of second branches decreases as the distance from the first vertical stem increases,
A width of a third domain defined as an arrangement region of the plurality of third branch portions decreases as the distance from the second vertical stem portion increases. 3. The method of claim 2,
The width of the second domain defined as the arrangement region of the plurality of second branches increases as the distance from the first vertical stem increases,
A width of a third domain defined as an arrangement region of the plurality of third branch portions increases as the distance from the second vertical stem portion increases. The display substrate of claim 2 , wherein at least one of the plurality of second branch portions and at least one of the plurality of third branch portions are connected to each other by the first connection portion. The display substrate of claim 1 , wherein the first slit has an angle of 5° to 45° with respect to the first direction. According to claim 1, wherein the pixel electrode further comprises a second sub-pixel electrode,
The second sub-pixel electrode,
a third unit electrode;
a fourth unit electrode spaced apart from the third unit electrode; and
a second connector connecting the third unit electrode and the fourth unit electrode;
a space between the third unit electrode and the fourth unit electrode defines a second slit, the second slit is not parallel to the first direction;
The third unit electrode may include a third vertical stem portion disposed on one side of the pixel area; and a third horizontal stem part connected to the third vertical stem part;
The fourth unit electrode may include a fourth vertical stem portion disposed on the other side of the pixel area; and a fourth horizontal stem part connected to the fourth vertical stem part;
One end of the third horizontal stem is connected to the third vertical stem, and the other end is adjacent to the third vertical stem of a neighboring pixel electrode;
One end of the fourth horizontal stem is connected to the fourth vertical stem, and the other end is adjacent to the fourth vertical stem of a neighboring pixel electrode. 9. The method of claim 8,
The third unit electrode includes a plurality of fifth branch portions and a plurality of sixth branch portions disposed to face each other with respect to the third horizontal stem portion,
The fourth unit electrode includes a plurality of seventh branch portions and a plurality of eighth branch portions disposed to face each other with respect to the fourth horizontal stem portion. The display substrate of claim 9 , wherein the fifth branch, the sixth branch, the seventh branch, and the eighth branch are sequentially disposed along a second direction crossing the first direction. 10. The method of claim 9,
The width of the sixth domain defined as the arrangement area of the plurality of sixth branch parts decreases as the distance from the third vertical stem part increases,
A width of a seventh domain defined as an arrangement region of the plurality of seventh branch portions decreases as the distance from the fourth vertical stem portion increases. 10. The method of claim 9,
The width of the sixth domain defined as the arrangement area of the plurality of sixth branch parts increases as the distance from the third vertical stem part increases,
A width of a seventh domain defined as an arrangement region of the plurality of seventh branch portions increases as the distance from the fourth vertical stem portion increases. The display substrate of claim 9 , wherein at least one of the plurality of sixth branch parts and at least one of the plurality of seventh branch parts are connected to each other by the second connection part. The display substrate of claim 8 , wherein the second slit has an angle of 5° to 45° with the first direction. According to claim 1,
and a shielding electrode disposed between pixel electrodes adjacent to each other in the first direction. display substrate; and
a counter substrate disposed to face the display substrate;
includes,
The display substrate is
a base substrate having a plurality of pixel areas disposed in a first direction;
a gate line on the base substrate;
a data line disposed on the base substrate and crossing the gate line;
a switching element connected to the gate line and the data line; and
a pixel electrode disposed in the pixel area and connected to the switching element;
The pixel electrode includes a first sub-pixel electrode,
The first sub-pixel electrode,
a first unit electrode;
a second unit electrode spaced apart from the first unit electrode; and
a first connector connecting the first unit electrode and the second unit electrode;
a space between the first unit electrode and the second unit electrode defines a first slit, wherein the first slit is not parallel to the first direction;
The first unit electrode may include a first vertical stem portion disposed on one side of the pixel area; and a first horizontal stem connected to the first vertical stem.
The second unit electrode may include a second vertical stem portion disposed on the other side of the pixel area; and a second horizontal stem connected to the second vertical stem.
One end of the first horizontal stem is connected to the first vertical stem, and the other end is adjacent to the first vertical stem of a neighboring pixel electrode;
One end of the second horizontal stem is connected to the second vertical stem, and the other end is adjacent to the second vertical stem of a neighboring pixel electrode,
The first vertical stem portion is parallel to the data line,
The first horizontal stem portion is parallel to the gate line,
the first slit is not parallel to the gate line and the data line;
The first slit is not perpendicular to the gate line and the data line. 17. The method of claim 16,
The first unit electrode includes a plurality of first branch portions and a plurality of second branch portions disposed to face each other with respect to the first horizontal stem portion,
The second unit electrode includes a plurality of third branch portions and a plurality of fourth branch portions disposed to face each other with respect to the second horizontal stem portion. 18. The method of claim 17,
The width of the second domain defined as the arrangement area of the plurality of second branches decreases as the distance from the first vertical stem increases,
A width of a third domain defined as an arrangement region of the plurality of third branches decreases as the distance from the second vertical stem increases. 18. The method of claim 17,
The width of the second domain defined as the arrangement region of the plurality of second branches increases as the distance from the first vertical stem increases,
A width of a third domain defined as an arrangement region of the plurality of third branch portions increases as the distance from the second vertical stem portion increases. The liquid crystal display of claim 16 , wherein the opposite substrate further comprises a common electrode.

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